21945605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{13759}}^1$

素因数の和:13804

約数の個数: 16

約数和(自身を含む): 29721600

約数和(自身を除く): 7775995

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 13759, 68795, 151349, 399011, 756745, 1995055, 4389121, 21945605]

約数ペア:

[(1, 21945605), (5, 4389121), (11, 1995055), (29, 756745), (55, 399011), (145, 151349), (319, 68795), (1595, 13759)]